{%  extends  "base.html" %}

{% block title %} 404 {% endblock %}

{% block page_content %}
<div class="page-header">

    <br>
<div class="alert alert-danger" role="alert">
      <h3> <strong>404</strong> 页面不存在！</h3>  <a href="{{ url_for('main.index') }}" class="alert-link">我回首页,你慢慢找!</a>
</div>
</div>

</div>
{% endblock %}